4. Divide into 12 and roll into balls. Using the heel of your hand gently squash the cookie ball into a circle and with a fork press into the top to create ridges.

5. Then lie the ridged side into the demerara sugar and press lightly so that it sticks to the top slightly.

6. Place your cookies on the baking tray allowing space for them to spread during baking.

7. For a 2-oven Aga, hang the baking tray on the lowest set of runners in the roasting oven and hang the Cold Plain Shelf on the second set of runners above. For a 3-,4- or 5-oven Aga, using the baking oven hang the tray on the third set of runners. For conventional ovens pre-heat to 180 ºC/Gas 4.